Download the Latest Version 1.2.2
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High quality resampler maintains filter frequency resolution regardless of host sample rate:
E.g. a 44.1 kHz, 65,536 tap FIR filter resampled at 705.6kHz host sample rate = 1,022,146 taps to maintain the filter’s frequency resolution.
HLC resampler works with .cfg files only. The resampler is engaged when HLC cannot find a matching sample rate filter when a filter is being loaded or when the host sample rate changes.
HLC provides user adjustable controls to fine tune the resamplers settings per Filterbank:
% = transition band is specified as the normalized spectral space of the input signal between the low-pass filter’s -3 dB point and the Nyquist frequency. Ranges from 0.5% to 45%.
dB = stop-band attenuation can be specified in the range from 49 to 218 decibels.
Phase = linear or minimum phase.
Double clicking on the resampler controls will reset to default settings.
Here’s an example showing the range of HLC’s resampler settings:
The orange trace is the default setting, the green trace is an intermediate setting and the blue trace is the minimum setting with optional minimum phase set.
To fine tune the resampler settings, load two Filterbanks with the same .cfg filter at one sample rate (e.g. 44.1 kHz). Leave one Filterbank with default settings and adjust the resampler controls for the 2nd Filterbank. Play music at a different sample rate to engage the resampler. Switch between the two filterbanks in real-time to tune in to the differences. Choose whichever settings sound best to your ears.